diff --git a/CMakeLists.txt b/CMakeLists.txt
index 17a631a..46ef2d0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,14 +5,14 @@ cmake_minimum_required(VERSION 3.12)
 
 # Based on configure.ac
 
-project(gperftools VERSION 2.8.90 LANGUAGES C CXX
+project(gperftools VERSION 2.9.0 LANGUAGES C CXX
         DESCRIPTION "Performance tools for C++"
         HOMEPAGE_URL http://code.google.com/p/gperftools/)
 
 # Update this value for every release!
-set(TCMALLOC_SO_VERSION 9.7.5)
-set(PROFILER_SO_VERSION 5.2.5)
-set(TCMALLOC_AND_PROFILER_SO_VERSION 10.2.6)
+set(TCMALLOC_SO_VERSION 9.8.5)
+set(PROFILER_SO_VERSION 5.3.5)
+set(TCMALLOC_AND_PROFILER_SO_VERSION 10.3.6)
 
 # The user can choose not to compile in the heap-profiler, the
 # heap-checker, or the cpu-profiler.  There's also the possibility
diff --git a/NEWS b/NEWS
index 56400dd..1f7da6b 100644
--- a/NEWS
+++ b/NEWS
@@ -1,3 +1,19 @@
+== 21 February 2021 ==
+gperftools 2.9 is out!
+
+Few more changes landed compared to rc:
+
+* Venkatesh Srinivas has contributed thread-safety annotations
+  support.
+
+* couple more unit test bugs that caused tcmalloc_unittest to fail on
+  recent clang has been fixed.
+
+* usage of unsupportable linux_syscall_support.h has been removed from
+  few places. Building with --disable-heap-checker now completely
+  avoids it. Expect complete death of this header in next major
+  release.
+
 == 14 February 2021 ==
 gperftools 2.9rc is out!
 
diff --git a/configure.ac b/configure.ac
index 3eaa069..9b1bec4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -4,12 +4,12 @@
 # make sure we're interpreted by some minimal autoconf
 AC_PREREQ([2.59])
 
-AC_INIT([gperftools],[2.8.90],[gperftools@googlegroups.com])
+AC_INIT([gperftools],[2.9.0],[gperftools@googlegroups.com])
 # Update this value for every release!  (A:B:C will map to foo.so.(A-C).C.B)
 # http://www.gnu.org/software/libtool/manual/html_node/Updating-version-info.html
-TCMALLOC_SO_VERSION=9:7:5
-PROFILER_SO_VERSION=5:2:5
-TCMALLOC_AND_PROFILER_SO_VERSION=10:2:6
+TCMALLOC_SO_VERSION=9:8:5
+PROFILER_SO_VERSION=5:3:5
+TCMALLOC_AND_PROFILER_SO_VERSION=10:3:6
 
 AC_SUBST(TCMALLOC_SO_VERSION)
 AC_SUBST(PROFILER_SO_VERSION)
diff --git a/src/windows/config.h b/src/windows/config.h
index 49582fc..250579a 100644
--- a/src/windows/config.h
+++ b/src/windows/config.h
@@ -279,7 +279,7 @@
 /* #undef TCMALLOC_PAGE_SIZE_SHIFT */
 
 /* Version number of package */
-#define VERSION "2.8.90"
+#define VERSION "2.9.0"
 
 /* C99 says: define this to get the PRI... macros from stdint.h */
 #ifndef __STDC_FORMAT_MACROS
diff --git a/src/windows/gperftools/tcmalloc.h b/src/windows/gperftools/tcmalloc.h
index a75f0cd..f072a5b 100644
--- a/src/windows/gperftools/tcmalloc.h
+++ b/src/windows/gperftools/tcmalloc.h
@@ -43,9 +43,9 @@
 
 /* Define the version number so folks can check against it */
 #define TC_VERSION_MAJOR  2
-#define TC_VERSION_MINOR  8
-#define TC_VERSION_PATCH  ".90"
-#define TC_VERSION_STRING "gperftools 2.8.90"
+#define TC_VERSION_MINOR  9
+#define TC_VERSION_PATCH  ".0"
+#define TC_VERSION_STRING "gperftools 2.9.0"
 
 #ifndef PERFTOOLS_NOTHROW